SURFACE-CONDITIONING COMPOSITION, SURFACE-CONDITIONING METHOD AND SURFACE-CONDITIONED ARTICLE

PROBLEM TO BE SOLVED: To provide a surface-conditioning composition which shows superior stability while being stored, and gives sufficient corrosion resistance and sufficient coating weight to a chemical conversion coating film to be formed by phosphate conversion treatment, particularly shows exce...

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Bibliographische Detailangaben
Hauptverfasser:	INBE TOSHIO, NAKATANI NOBUO, KATSURA HIROSHI, SHIGENAGA TSUTOMU, WADA YUSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a surface-conditioning composition which shows superior stability while being stored, and gives sufficient corrosion resistance and sufficient coating weight to a chemical conversion coating film to be formed by phosphate conversion treatment, particularly shows excellent corrosion resistance when applied to a contact part of dissimilar metals generated by various metallic materials subjected to simultaneous chemical conversion treatment or a material to be hardly chemical-conversion-treated such as a high-tensile-strength steel sheet. SOLUTION: The surface conditioning composition includes particles of zinc phosphate and has a pH of 3 to 12. The particles of zinc phosphate have D50of 3 μm or smaller. The composition further includes an alkanolamine, gallic acid and fine particles of an acrylic resin containing a hydroxyl group. COPYRIGHT: (C)2008,JPO&INPIT